SpaceDog Posted July 3, 2008 Share Posted July 3, 2008 Anyone know what the bore size is of the factory M2 barrel? Quote Link to comment Share on other sites More sharing options...
adamlau Posted July 3, 2008 Share Posted July 3, 2008 M2 11006 = 12 gauge = 18.53 mm bore diameter (± accepted manufacturing tolerances). Quote Link to comment Share on other sites More sharing options...
SpaceDog Posted July 4, 2008 Author Share Posted July 4, 2008 Thanks Adam! Quote Link to comment Share on other sites More sharing options...
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